diff --git a/drivers/rpmsg/rpmsg_port.c b/drivers/rpmsg/rpmsg_port.c
index 5668aecd7e..75483c73c1 100644
--- a/drivers/rpmsg/rpmsg_port.c
+++ b/drivers/rpmsg/rpmsg_port.c
@@ -281,7 +281,10 @@ static int rpmsg_port_send_offchannel_nocopy(FAR struct rpmsg_device *rdev,
              sizeof(struct rpmsg_hdr) + len;
 
   rpmsg_port_queue_add_buffer(&port->txq, hdr);
-  port->ops->notify_tx_ready(port);
+  if (port->ops->notify_tx_ready)
+    {
+      port->ops->notify_tx_ready(port);
+    }
 
   return len;
 }
@@ -340,7 +343,10 @@ static void rpmsg_port_release_rx_buffer(FAR struct rpmsg_device *rdev,
   if ((reserved & RPMSG_BUF_HELD_MASK) == (1 << RPMSG_BUF_HELD_SHIFT))
     {
       rpmsg_port_queue_return_buffer(&port->rxq, hdr);
-      port->ops->notify_rx_free(port);
+      if (port->ops->notify_rx_free)
+        {
+          port->ops->notify_rx_free(port);
+        }
     }
 }